package com.example.demo2;

import android.animation.ValueAnimator;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Path;
import android.renderscript.Sampler;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;

public class MyView extends View {
    private final  String TAG = "MyView";
    private Paint paint = new Paint();
    private int value;

    public MyView(Context context, AttributeSet attrs) {
        super(context, attrs);

        paint.setColor(Color.RED);
        paint.setStrokeWidth(60);
        paint.setAntiAlias(true);
        paint.setStyle(Paint.Style.STROKE);
//        paint.setTextSize(15);

        ValueAnimator valueAnimator = ValueAnimator.ofInt(0,500);
        valueAnimator.setDuration(5000);
        valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                value = (int) animation.getAnimatedValue();
                invalidate();
            }
        });
        valueAnimator.setRepeatCount(-1);
        valueAnimator.start();
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        Log.e(TAG, "onDraw" );

        Bitmap bitmap = BitmapFactory.decodeResource(getResources(),R.drawable.yangying);
        canvas.drawBitmap(bitmap,value,value,paint);


//        canvas.drawColor(Color.BLUE);

//        canvas.drawLine(100,100,300,500,paint);
//        canvas.drawRect(100,100,400,400,paint);

        //圆
//        canvas.drawCircle(300,300,100,paint);

//        canvas.drawArc(100,100,300,300,225,90,true,paint);

//        Path path = new Path();
//        path.lineTo(100,100);
//        path.lineTo(100,300);
//        path.lineTo(200,500);
//        canvas.drawPath(path,paint);

//          canvas.drawText("你好饿了吗？",200,200,paint);

//        canvas.drawLine(100,100,100,300,paint);

//        Bitmap bitmap = BitmapFactory.decodeResource(getResources(),R.drawable.yangying);
//        canvas.drawBitmap(bitmap,0,200,paint);
//        Matrix matrix = new Matrix();
//        matrix.setScale(0.5f,0.5f);
//        canvas.drawBitmap(bitmap,matrix,paint);


//        Matrix matrix2 = new Matrix();
//        matrix2.setScale(-0.5f,0.5f);
//        matrix2.postTranslate(495,0);
//        canvas.drawBitmap(bitmap,matrix2,paint);
//
//        Matrix matrix3 = new Matrix();
//        matrix3.setScale(0.5f,-0.5f);
//        matrix3.postTranslate(0,495);
//        canvas.drawBitmap(bitmap,matrix3,paint);
//
//        Matrix matrix4 = new Matrix();
//        matrix4.setScale(-0.5f,-0.5f);
//        matrix4.postTranslate(495,495);
//        canvas.drawBitmap(bitmap,matrix4,paint);



    }

}
